Standard Practice for
Quality Assurance of Standard
AASHTO Designation: R 38-04
1.1.This document contains minimum criteria and guidelines for establishing and implementing quality assurance procedures for Standard Manufactured Materials used in highway construction.
The purpose of this document is to establish minimum quality control (QC) requirements for Manufacturers and to provide guidelines for acceptance of standard manufactured materials by transportation agencies.
1.2. Standard Manufactured Material-Materials used in transportation construction are broadly categorized according to their source and corresponding methods of production.
The three principal materials categories are as follows:
- Project produced materials,
- Fabricated structural materials, and
- Standard manufactured materials.
1.3. In order to explain the difference between these materials categories and provide a basic understanding of how quality assurance (QA) is applied to them;
each of the three primary material categories is defined below (see Section 3).
Although QA procedures should be addressed for each of these material categories,
the scope of this recommended practice is the application of quality assurance to standard manufactured materials.
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